| 
                 
                    Closing price on 7/19/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    4.20 | 
                 
                
                    | High | 
                    4.30 | 
                 
                
                    | Low | 
                    4.20 | 
                     
                
                    | Volume | 
                    70,370 | 
                                 
                
                    | Split-adjusted Price | 
                    1.57 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VTO Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/19/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                1.57
             |                                 
            
                70,370
             |            
            
                 
             |                                       
         
    
        
            | 
                7/18/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.10
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                1.57
             |                                 
            
                50,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/17/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                1.57
             |                                 
            
                54,550
             |            
            
                 
             |                                       
         
    
        
            | 
                7/16/2013
             | 
            
                -0.10 / -2.33%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                1.57
             |                                 
            
                90,730
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/15/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                1.61
             |                                 
            
                10,310
             |            
            
                 
             |                                       
         
    
        
            | 
                7/12/2013
             | 
            
                +0.20 / +4.88%
             |             
            
                4.10
             |           
            
                4.30
             |               
            
                4.10
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                1.61
             |                                 
            
                48,180
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/11/2013
             | 
            
                -0.20 / -4.65%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.10
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                1.54
             |                                 
            
                4,210
             |            
            
                 
             |                                       
         
    
        
            | 
                7/10/2013
             | 
            
                +0.10 / +2.38%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                1.61
             |                                 
            
                36,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/9/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                1.57
             |                                 
            
                21,650
             |            
            
                 
             |                                       
         
    
        
            | 
                7/8/2013
             | 
            
                -0.10 / -2.33%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                1.57
             |                                 
            
                19,160
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/5/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                1.61
             |                                 
            
                24,790
             |            
            
                 
             |                                       
         
    
        
            | 
                7/4/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                1.61
             |                                 
            
                32,310
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/3/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                1.61
             |                                 
            
                46,100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/2/2013
             | 
            
                +0.10 / +2.38%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                1.61
             |                                 
            
                17,710
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/1/2013
             | 
            
                -0.10 / -2.33%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.10
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                1.57
             |                                 
            
                26,760
             |            
            
                 
             |                                       
         
    
        
            | 
                6/28/2013
             | 
            
                -0.10 / -2.27%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                1.61
             |                                 
            
                24,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/27/2013
             | 
            
                +0.10 / +2.33%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.20
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                1.65
             |                                 
            
                55,060
             |            
            
                 
             |                                       
         
    
        
            | 
                6/26/2013
             | 
            
                +0.20 / +4.88%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.30
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                1.61
             |                                 
            
                226,650
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/25/2013
             | 
            
                -0.20 / -4.65%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.00
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                1.54
             |                                 
            
                240,480
             |            
            
                 
             |                                       
         
    
        
            | 
                6/24/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.10
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                1.61
             |                                 
            
                240,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/21/2013
             | 
            
                +0.10 / +2.38%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                1.61
             |                                 
            
                71,850
             |            
            
                 
             |                                       
         
    
        
            | 
                6/20/2013
             | 
            
                -0.10 / -2.33%
             |             
            
                4.30
             |           
            
                4.40
             |               
            
                4.20
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                1.57
             |                                 
            
                48,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/19/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.30
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                1.61
             |                                 
            
                34,910
             |            
            
                 
             |                                       
         
    
        
            | 
                6/18/2013
             | 
            
                -0.10 / -2.27%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.30
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                1.61
             |                                 
            
                39,290
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/17/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.30
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                1.65
             |                                 
            
                45,990
             |            
            
                 
             |                                       
         
    
        
            | 
                6/14/2013
             | 
            
                +0.10 / +2.33%
             |             
            
                4.40
             |           
            
                4.50
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                1.65
             |                                 
            
                63,090
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/13/2013
             | 
            
                -0.20 / -4.44%
             |             
            
                4.40
             |           
            
                4.50
             |               
            
                4.30
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                1.61
             |                                 
            
                109,110
             |            
            
                 
             |                                       
         
    
        
            | 
                6/12/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.50
             |           
            
                4.50
             |               
            
                4.40
             |                           
            
                4.50
             | 
            
                4.50
             |                     
            
                1.69
             |                                 
            
                79,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/11/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.50
             |           
            
                4.50
             |               
            
                4.40
             |                           
            
                4.50
             | 
            
                4.50
             |                     
            
                1.69
             |                                 
            
                43,380
             |            
            
                 
             |                                       
         
    
        
            | 
                6/10/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.50
             |           
            
                4.60
             |               
            
                4.50
             |                           
            
                4.50
             | 
            
                4.50
             |                     
            
                1.69
             |                                 
            
                92,320
             |  
            
                 
             |                                                              
             
    
         
    
    
 |